This is how the building that now hosts the KitKatClub looked | KitKatClub, Berlin (official)

This is how the building that now hosts the KitKatClub looked like in the 1960s after the erection of the wall. Doors and windows got sealed by the DDR government so that persons would not gain access to the subway station underneath. The U8 subway, that had been built before the 2nd World War, had a route that connected parts of West Berlin such as Wedding and Kreuzberg, but it had a few stops in Mitte, which was eastern territory. The DDR allowed the U8 to pass underneath eastern Berlin, but without ever stopping at stations such as Heinrich-Heine-Straße. Those stops were called "ghost stations", they had dim lighting and you could only see some military bearing machine guns as the subway passed at full speed. They say those militaries would hang out in the rooms that now belong to the KitKatClub whenever they had a pause of shift. (1/2)